1 files changed, 28 insertions, 0 deletions
diff --git a/jsonschema/_typing.py b/jsonschema/_typing.py
new file mode 100644
index 0000000..d283dc4
--- /dev/null
+++ b/jsonschema/_typing.py
@@ -0,0 +1,28 @@
+"""
+Some (initially private) typing helpers for jsonschema's types.
+"""
+from typing import Any, Callable, Iterable, Protocol, Tuple, Union
+
+import referencing.jsonschema
+
+from jsonschema.protocols import Validator
+
+
+class SchemaKeywordValidator(Protocol):
+    def __call__(
+        self,
+        validator: Validator,
+        value: Any,
+        instance: Any,
+        schema: referencing.jsonschema.Schema,
+    ) -> None:
+        ...
+
+
+id_of = Callable[[referencing.jsonschema.Schema], Union[str, None]]
+
+
+ApplicableValidators = Callable[
+    [referencing.jsonschema.Schema],
+    Iterable[Tuple[str, Any]],
+]